PublicDomain

Created Issue: Recent Olson Data Changes Crash Public Domain

mlmanfredi — Mon, 08 Jun 2009 15:37:58 GMT

The 2009h update has the following change...
OLD: Rule\tJordan\t2002\tmax\t-\tMar\tlastFri\t0:00s\t1:00\tS
NEW: Rule\tJordan\t2002\tmax\t-\tMar\tlastThu\t24:00\t1:00\tS

The ParseTimeSpan function in DateTimeUtilities.cs chokes on this because TimeSpan.Parse can't handle "24:00".

New Post: Bangladesh / Dhaka switching to DST +07:00 on June 20, 2009

alanbirenbaum — Thu, 04 Jun 2009 11:05:30 GMT

Does anyone have a patch for this new Rule?

Created Issue: Code\CodeUtilities.cs: VisualBasic ReferencedAssemblies, fixed paths issue

CoolSpin — Fri, 01 May 2009 15:54:08 GMT

Hi.

http://publicdomain.codeplex.com/SourceControl/changeset/view/41779#308775
File: Code\CodeUtilities.cs:172-173

Problem:
compilerParameters.ReferencedAssemblies.Add(@"c:\windows\Microsoft.NET\Framework\v2.0.50727\System.dll");
compilerParameters.ReferencedAssemblies.Add(@"c:\windows\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll");

Paths are static, its not given that the Windows directory will always be C:\WINDOWS.

Possible solutions:

http://msdn.microsoft.com/en-us/library/system.environment.specialfolder(VS.71).aspx
with
http://msdn.microsoft.com/en-us/library/system.environment.getfolderpath(VS.71).aspx

string systemdir = Environment.GetFolderPath(Environment.SpecialFolder.System)

This will result in $windowsdir\System32. You can then check for the existense of the special files File.Exists() or check the parent directory:

systemdir += ".." + Path.DirectorySeparatorChar + "Microsoft.Net.....";
File.Exists(systemdir)

Or you can read the following registry key:
HKLM\SOFTWARE\Microsoft\.NETFramework\[REG_SZ:InstallRoot]
Which should return: C:\WINDOWS\Microsoft.NET\Framework\

Very practical library, if not directly used, then as reference.

New Post: Time zone update tools, project

schizoidboy — Sat, 18 Apr 2009 21:51:43 GMT

Hi, sorry but this project is no longer under active development. The effort was part of a for-profit venture which is in hibernation. The source code is available and there were also some patches people had made to get it working as attachments in the bugs, although I never tested them myself and never fixed/added assertions to fix the bugs.
There is also this alternative:
http://www.codeproject.com/KB/locale/zoneinfo_dotnet_api.aspx
I have been out of the space for some time so I'm not aware if there are other alternatives. I don't see anything new @ http://www.twinsun.com/tz/tz-link.htm
Good luck! Let us know how you solve your problems...
Regards

New Post: Time zone update tools, project

bbell2000 — Wed, 15 Apr 2009 00:21:36 GMT

I'm curious about whether this project is being maintained and what the current status is wrt bugs. I'm desperately looking for the time zone functionality that's missing from .NET 2, but had a bit of trouble with the instructions outlined above (the assertions in TzTimeZoneTests.Bug13252a aren't right and couldn't have possibly been verified).

New Post: Fix Documentation

schizoidboy — Tue, 03 Feb 2009 06:35:43 GMT

Hi ingig, this is a security feature in Windows. After you download the CHM file, right click -> Properties, and then click "Unblock" at the bottom. You can also change your Internet Options security policy.
I'll have to investigate adding an index. I use http://inchl.nl/SandcastleGUI/ for generating the CHM.
Thanks,

New Post: Fix Documentation

ingig — Tue, 27 Jan 2009 13:50:43 GMT

Any chance that the documentation can be fixed? I get "The address is not valid" when I browse through the classes. Also is it possible to add Index to it?

Commented Issue: Southern hemisphere: GetDaylightChanges.Start and .End are reversed

AlanBirenbaum — Wed, 14 Jan 2009 23:34:58 GMT

In PublicDomain.TzTimeZone, GetDaylightChanges(iDSTYear).Start and GetDaylightChanges(iDSTYear).End return reverse values (.Start returns a DST off value and .End the DST on value) for time zone locales in the southern hemisphere.

Examples are 'Pacific/Auckland', all Australian TZs with DST offset such as 'Australia/Adelaide', 'America/Sao_Paulo', etc.
Comments: ** Comment from web user: AlanBirenbaum **

Seems that you also need to modify the else if in the TzTimeZone PrepOffset routine as follows:

private void PrepOffset(ref DateTime time, ref TimeSpan result, PublicDomain.TzDatabase.TzZone zone)
{
// First, figure out which zone we're in
DateTime point = new DateTime(time.Year, 1, 1);

PublicDomain.TzDatabase.TzRule one;
PublicDomain.TzDatabase.TzRule two;
DaylightTime daylightTime;

GetDaylightChangeRules(ref point, zone, DateTimeKind.Local, out one, out two, out daylightTime);

if (daylightTime != null && daylightTime.Start < daylightTime.End && time >= daylightTime.Start && time < daylightTime.End)
{
result += one.SaveTime;
}
//**orig** else if (daylightTime != null && daylightTime.Start > daylightTime.End && (time <= daylightTime.Start || time > daylightTime.End))
// ! check that it's NOT standart time
else if (daylightTime != null && daylightTime.Start > daylightTime.End && !(time >= daylightTime.End && time < daylightTime.Start))
{
result += one.SaveTime;
}
}

Commented Issue: GetHashCode() seems to return different numbers in x86 and x64

CHolt — Wed, 10 Dec 2008 19:09:11 GMT

Therefore, when recompile the code in x64, the function GetTimeZone returns null, because the hash doesn't match the hard coded ones.
How can I solve this?
Thanks,
Nestor
Comments: ** Comment from web user: CHolt **

This seems like it might be fixed in the latest version. I just downloaded the source to make the changes necessary to get around it and it looks like the switch statement has been changed to switch off of strings.

Commented Issue: GetHashCode() seems to return different numbers in x86 and x64

CHolt — Wed, 10 Dec 2008 18:38:54 GMT

I am having the same problem. I think this is a bit more serious than a low impact.

New Post: Known Issues and Bugs?

schizoidboy — Sun, 30 Nov 2008 11:05:11 GMT

Hi Chris, Unfortunately, I've had almost no free time to work on those bugs, so they are still open. The Issue Tracker is pretty up-to-date.
Thanks,

New Post: Known Issues and Bugs?

chrispar — Wed, 26 Nov 2008 06:33:43 GMT

Hi Kevin,

May I know where can I find all the known issues and bugs of the current release (0.2.47.0)?

As I browse through the discussion section, it didnt mention whether the bugs are solved. especially GetAbbreviation, GetUtcOffSet and DST.

Appreciate your reply.

Thanks
Chris Par

New Post: Newbie question

schizoidboy — Thu, 13 Nov 2008 23:25:44 GMT

Hi, sorry, this is only supported with .NET, not with older VB6.
Thanks,

New Post: Newbie question

kepler — Mon, 10 Nov 2008 19:29:43 GMT

Hi,

To use PublicDomain.dll in VB6, we must include the dll in our project directory. How do we reference it? I tryed manualy, and VB6 didn't accept it. I've runned regsvr32 and it didn't worked out.
Sorry for the question...

Kind regards,

Kepler

New Post: GetUtcOffset gives the wrong value

russlau — Wed, 05 Nov 2008 11:03:42 GMT

I'm testing GetUtcOffset either side of the daylight cut-over for Sydney, and I always get 11 hours:

            TzTimeZone tzZone = TzTimeZone.GetTimeZone("Australia/Sydney");
            double h1 = tzZone.GetUtcOffset(DateTime.Parse("1-Oct-2008 12:00")).TotalHours;
            double h2 = tzZone.GetUtcOffset(DateTime.Parse("31-Oct-2008 12:00")).TotalHours;

Testing "IsDaylightSavingTime" definitely gives me the results I expect:

            bool b1 = tzZone.IsDaylightSavingTime(DateTime.Parse("1-oct-2008 12:00")); // gives false
            bool b2 = tzZone.IsDaylightSavingTime(DateTime.Parse("31-oct-2008 12:00")); // gives true

New Post: How to convert the given time based on TimeZone?

russlau — Wed, 05 Nov 2008 10:58:57 GMT

This should do what you want:

            TzTimeZone perth = TzTimeZone.GetTimeZone("Australia/Perth");
            TzTimeZone adelaide = TzTimeZone.GetTimeZone("Australia/Adelaide");
            DateTime utc = perth.ToUniversalTime(DateTime.Parse("24-Sep-2008 12:00"));
            DateTime inAdelaide = adelaide.ToLocalTime(utc);
            Console.WriteLine(inAdelaide.ToLongTimeString());

There's more info on the CodeProject article: http://www.codeproject.com/KB/dotnet/Using_time_zones_in_NET.aspx

Source code checked in, #41779

schizoidboy — Thu, 16 Oct 2008 05:22:26 GMT

Added alternate configs

New Post: How to convert the given time based on TimeZone?

tallboy — Wed, 24 Sep 2008 04:22:51 GMT

Hi Guys,

I am using Olson TimeZone, and I would like to convert the give datetime based on the TimeZone.

For example:

TimeZone: Australia/Perth:
Given Time: Wednesday, September 24, 2008 12:00:00PM

Process... is to convert the Given Time based on the new TimeZone which is "Australia/Adelaide"

Result Should be:

TimeZone: Australia/Adelaide
Converted Time: Wednesday, September 24, 2008 1:00:00PM

I am having difficulty doing this process in PublicDomain. Can you share me some of your thougths on how to do this?

Thanks

New Post: How to assign value in Zone manually?

tallboy — Wed, 24 Sep 2008 02:57:52 GMT

Hi Guys,

Please disregard this question of mine, because I already got it by using the TzTimeZone.GetTimeZone("Australia/Perth");

New Post: How to assign value in Zone manually?

tallboy — Wed, 24 Sep 2008 02:18:05 GMT

Hi,

I am new to PublicDomain.dll and I would like to ask if is there any way to assign value to zone, manually?

I tried this code below but it gives an error: (CS0029: Cannot implicitly convert type 'string' to 'PublicDomain.TzTimeZone'

TzTimeZone zone = "Australia/Perth";